As an aside I think I’ve seen Windows 11 being extremely intolerant of allowing another OS to setup the dual boot. I think someone responded to an inquiry about it that - sarcastically - Microsoft was jealous other OSes are being used more so they fuck with anything and need to be the install that establishes the boot loader. Not sure how much of that to take seriously but let’s face it, they’re dying and not going without a hissy fit.
FatLegTed